Loading... Please wait...While it is hard to show in a photograph, ulexite exhibits a unique fiber-optic quality. When place on a surface, the image of that surface appears on the TOP of the ulexite sample! Students are always impressed by this curious mineral. Each sample is 1-1.5 inches (2.5-3.5 cm) wide and approximately 1 cm thick, and contains naturally occurring clefts. Sold individually.
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